WO2015074505A1

WO2015074505A1 - Automobile sun visor, automobile, and electronic tag for intelligent traffic

Info

Publication number: WO2015074505A1
Application number: PCT/CN2014/090884
Authority: WO
Inventors: 祝海龙; 袁彦; 向涛; 李怀山
Original assignee: 深圳市金溢科技有限公司
Priority date: 2013-11-22
Filing date: 2014-11-12
Publication date: 2015-05-28
Also published as: CN103778674A; CN103778674B

Abstract

An automobile sun visor, an automobile, and an electronic tag for intelligent traffic. The automobile sun visor comprises a casing (116), and further comprises a radio frequency antenna (103), and an on board unit (101). The radio frequency antenna (103) is placed outside the casing (116) and is used for receiving and sending communication signals. The on board unit (101) is accommodated inside the casing (116) and is used for performing data interaction with an IC card and performing data interaction with a third-party communication device by using the radio frequency antenna (103). A card insertion mechanism for accommodating an IC card is further disposed on the casing (116). The on board unit (101) is integrated inside the casing (116) of the automobile sun visor, so that in one aspect a perfect combination of the on board unit (101) and the automobile is achieved, and in another aspect normal communication of the on board unit (101) is not affected. In a preferred example, a high sensitivity wake unit is used in the on board unit (101), so as to prevent signal attenuations caused by a windshield of an automobile and influence on communication between the on board unit (101) and a road side unit.

Description

Automobile sun visor, automobile and electronic label for intelligent transportation

Technical field

The invention relates to the field of intelligent transportation, in particular to a vehicle sun visor, an automobile and an electronic tag for intelligent transportation.

Background technique

ETC (Electronic Toll Collection Electronic non-stop charging) is mainly composed of two parts, namely road side unit (RSU, Road Side Uints) and vehicle unit (vehicle unit, On Board) Units), wherein the roadside unit is composed of a microwave antenna and a read/write controller, and the roadside unit is usually installed on the gantry of the toll lane or on the column of the toll island for communication with the onboard unit on the vehicle. The vehicle unit has microwave communication function and stores vehicle information and user account information. When the car passes through the ETC channel, The roadside unit communicates with the onboard unit and completes the transaction, thereby implementing electronic non-stop charging.

The existing vehicle unit is generally purchased separately and is installed by the seller or the consumer independently on the windshield or the dashboard of the automobile. This independently mounted vehicle unit may block the driver's sight due to the installation position, and this The independent installation of the vehicle-mounted unit and the car are not highly integrated, and the aesthetics will be lacking.

Summary of the invention

The invention proposes a vehicle sun visor or an electronic tag for intelligent transportation, so as to realize the integration and integration of the vehicle unit and the automobile, and does not affect the purpose of normal transaction communication between the vehicle unit and the roadside unit.

In order to achieve the above object, the present invention adopts the following technical solutions:

Firstly, the present invention provides a vehicle sun visor for intelligent transportation, comprising a casing, and further comprising an RF antenna and an onboard unit, the RF antenna being disposed outside the casing for transmitting and receiving communication signals; and the vehicle unit being housed in the casing Internally, used to interact with the IC card data and perform data interaction with other communication devices through the RF antenna;

The vehicle unit includes: a control unit, a power supply unit, a radio frequency unit, a wake-up unit, a reading and writing unit, and a charging verification unit;

The radio frequency antenna is electrically connected to the radio frequency unit, and the control unit is electrically connected to the power supply unit, the radio frequency unit, the wake-up unit, the read-write unit, and the charging verification unit respectively;

A card insertion mechanism for accommodating the IC card is also disposed on the housing.

In one embodiment, the card insertion mechanism includes a card pocket that is mounted on the front or back side of the housing and that matches the position of the vehicle unit. The card pocket has an opening for inserting an IC card into the pocket.

In one embodiment, the card insertion mechanism includes a first card slot embedded in the housing and matched with the position of the vehicle-mounted unit, and the slot of the first card slot is opened at a side of the housing.

In one embodiment, the card insertion mechanism includes a clip for holding the IC card, and the clip includes a fixing portion and a clamping portion connected to the fixing portion, the fixing portion is fixed to the front surface or the reverse surface of the housing, and the clamping portion is extended. To the position that matches the onboard unit.

Preferably, the card insertion mechanism comprises a card detecting mechanism connected to the control unit, the card detecting mechanism comprises two detecting contacts for detecting the IC card in the width direction, and the two detecting contacts are respectively arranged on the card track of the card insertion mechanism. side.

Preferably, the front surface of the housing is mounted with a cosmetic mirror, and the vehicle unit further includes a display screen electrically connected to the control unit and mounted on the back of the cosmetic mirror, the cosmetic mirror further comprising a perspective for displaying the display content in the working state of the display screen. region.

Preferably, the utility model further comprises a cosmetic mirror cover and a detecting mechanism; the cosmetic mirror cover is movably connected to the housing for covering the cosmetic mirror; the detecting mechanism is electrically connected with the display screen and the power supply unit, and is used for detecting that the cosmetic mirror cover is When the status is turned on and the power supply unit is detected to be lower than the preset level, a prompt is displayed on the display.

Preferably, the solar module further includes a solar module and a triggering mechanism; the solar module is disposed on the reverse side of the housing, and the solar module is electrically connected to the power supply unit; the triggering mechanism is electrically connected to the power supply unit, and is configured to detect that the housing is in an inverted state and detects the power supply When the unit charge is lower than the preset level, the power supply unit is charged.

Preferably, the awake unit comprises: a signal amplifying subunit and a frequency selective subunit; the signal amplifying subunit is electrically connected to the frequency selective subunit, the signal amplifying subunit is further electrically connected to the radio frequency unit, and the frequency selecting subunit and the control unit are electrically connected, The signal amplification subunit is configured to amplify the wakeup signal, and the frequency selection subunit is configured to wake up the onboard unit according to the frequency of the wakeup signal.

Preferably, the control unit is further configured to receive the sensitivity gear position information obtained by the handheld device according to the attenuation value of the vehicle windshield receiving signal to the vehicle unit, and further to adjust the vehicle according to the sensitivity gear position information and the pre-stored sensitivity gear position information table. The sensitivity of the unit, the wake-up unit is used to wake up the on-board unit when sensitivity is reached.

Preferably, the utility model further comprises a tampering mechanism and a tamper-proof antenna box, wherein the tampering mechanism and the radio frequency antenna are installed inside the tamper-proof antenna box, and the tamper-proof mechanism is electrically connected to the control unit through the tamper-proof line. The control unit is further configured to determine a disassembly state of the electronic tag according to the detachment prevention signal transmitted by the tamper mechanism.

Preferably, the vehicle unit is further provided with a second card slot for inserting the ESAM card, and the slot of the second card slot is opened on the surface of the casing.

Preferably, the other communication device is a desktop reader, a roadside unit or a handset of the non-stop charging system or the parking lot charging system.

Next, the present invention provides an automobile, including an automobile body, and further comprising the above-described automobile sun visor, the automobile sun visor being disposed inside the automobile body, and the radio frequency antenna being mounted on the windshield of the automobile body.

The present invention provides an electronic tag comprising an onboard unit disposed in a sun visor of the automobile and an RF antenna fixed on the windshield. The radio frequency antenna is connected to the vehicle unit, and the onboard unit includes: a control unit, a power supply unit, The radio frequency unit, the wake-up unit, the reading and writing unit, and the charging verification unit; the radio frequency antenna is electrically connected to the radio frequency unit, and the control unit is electrically connected to the power supply unit, the radio frequency unit, the wake-up unit, the reading and writing unit, and the charging verification unit respectively.

Preferably, the utility model further comprises a tampering mechanism and a tamper-proof antenna box, wherein the tampering mechanism and the radio frequency antenna are installed inside the tamper-proof antenna box, the tampering mechanism is electrically connected to the control unit through the tamper-proof line, and the control unit is used according to the tamper-proof mechanism The transmitted tamper-proof signal determines the disassembly status of the electronic tag.

The invention has the beneficial effects that the integrated vehicle-mounted unit is disposed inside the casing of the automobile sun visor, realizes integration and integration of the vehicle-mounted unit and the automobile, has beautiful appearance and convenient use, and does not affect the communication function of the vehicle-mounted unit, and the visor is easily replaced. The technology has a broad market in the front and rear loading fields, and the plug-in card is convenient, and the information such as the balance of the card can be viewed by using the mirror on the sun visor, and the viewing angle is good.

DRAWINGS

1 is a schematic structural diagram of a circuit module of a vehicle-mounted unit according to Embodiment 1 of the present invention;

2 is a schematic front view showing the structure of a vehicle sun visor when the cover is not closed according to the first embodiment of the present invention;

3 is a schematic front view showing the structure of a vehicle sun visor when the cover is closed according to the first embodiment of the present invention;

4 is a schematic structural view of a reverse side of a sun visor of a vehicle according to Embodiment 1 of the present invention;

FIG. 5 is a schematic diagram showing the front structure of the detecting switch when the detecting switch is not closed according to the first embodiment of the present invention; FIG.

Figure 6 is a cross-sectional structural view of the rotating shaft of Figure 5;

FIG. 7 is a schematic front view showing the structure of the detecting switch after the closing of the detecting switch according to the first embodiment of the present invention; FIG.

Figure 8 is a schematic cross-sectional structural view of the rotating shaft of Figure 7;

9 is a schematic structural diagram of an IC card detection performed by an onboard unit in the prior art;

10 is a schematic structural view showing an IC card detection of a sun visor of a vehicle according to Embodiment 1 of the present invention;

Figure 11 is a schematic front view showing the structure of the vehicle sun visor when the cover plate is not closed;

Figure 12 is a side elevational view of Figure 10;

Figure 13 is a front view showing the structure of Figure 11 when the cover is closed;

14 is a second schematic structural view of a front view of a vehicle sun visor when the cover plate is not closed according to the second embodiment of the present invention;

Figure 15 is a bottom plan view of Figure 14;

Figure 16 is a front view showing the structure of Figure 14 when the cover is closed;

17 is a schematic front view showing the structure of a vehicle sun visor when the cover is not closed according to the third embodiment of the present invention;

FIG. 18 is a schematic front view showing the structure of a vehicle sun visor when the cover is closed according to the third embodiment of the present invention.

detailed description

The present invention will be further described in detail below with reference to the accompanying drawings.

Embodiment 1:

The embodiment provides a vehicle sun visor for intelligent transportation. Referring to FIG. 1-10, the vehicle sun visor includes: a housing 116, and further includes a radio frequency antenna 103 and an onboard unit 101. The radio frequency antenna 103 is electrically connected to the vehicle unit 101. The RF antenna 103 is disposed outside the housing 116, and can be mounted on the windshield of the automobile for receiving communication signals in a specific application; the vehicle unit 101 is housed in the housing 116, and the vehicle unit 101 is used for IC on one hand. Card data interaction, on the other hand, is also used for data interaction with other communication devices through the radio frequency antenna 103. The vehicle unit 101 can be used to interact with the roadside unit in the expressway to realize the function of electronic non-stop charging, and can also be used in the parking lot. The roadside unit interacts with the non-stop charging function; the housing 116 is further provided with a card insertion mechanism for accommodating the IC card. In this embodiment, the other communication device may be, for example, a desktop reader/writer, a roadside unit or a handheld device of the non-stop charging system or the parking lot charging system.

As shown in FIG. 1, the onboard unit includes a control unit, a power supply unit, a radio frequency unit, a wakeup unit, a read/write unit, and a charge verification unit. The radio frequency antenna 103 can communicate with the roadside unit; the control unit is used to control the operation of each component unit of the entire vehicle unit; the radio frequency unit is used for receiving and transmitting signals through the radio frequency antenna 103; and the wakeup unit is used for the vehicle unit The state transitions from the sleep mode to the normal working mode; the charging verification unit is configured to verify the validity of the vehicle information of the toll vehicle and the smart card after the vehicle unit establishes communication with the roadside unit, thereby determining the charge; the reading and writing unit is used for Perform data interaction with an IC card, etc., write data to the IC card, or acquire data stored in the IC card. In a specific embodiment, the control unit, the power supply unit, the radio frequency unit, the wake-up unit, the read-write unit, and the charging verification unit are integrated and housed in the housing 116. Specifically, the control unit, the power supply unit, the radio frequency unit, and the wake-up unit The read/write unit and the charge verification unit are integrated to form a PCB board installed inside the casing 116; the RF antenna 103 is electrically connected to the RF unit; the control unit and the power supply unit, the RF unit, the wake-up unit, the read-write unit and the charge verification unit are respectively powered Connection; in addition, as a preferred, the power supply unit is also electrically connected to the control unit, the radio frequency unit, the wake-up unit, the read-write unit, and the charge verification unit, respectively, as a control unit, a radio frequency unit, a wake-up unit, a read-write unit, and a charge verification. The unit provides working power. Specifically, the radio frequency antenna 103 is connected to the radio frequency unit through the radio frequency connection line 104. One end of the radio frequency connection line 104 is connected to the radio frequency unit, and the other end is led out from the side of the housing 116 through the wire slot inside the sun visor housing 116, and is connected. The radio frequency antenna 103 is preferably mounted on the windshield when the vehicle sun visor is installed into the automobile body.

At present, the card reading methods of the vehicle unit mainly have the following two types: contact card reader and contactless card reader. Contact card reading: It is the card reading method of the current independent car unit. It is a traditional card reading method. The bare metal piece on the IC card is in contact with the read/write contacts of the car unit to realize data reading and writing. Non-contact card reading: The car unit has a wireless card reading function, specifically for reading communication with a certain frequency (such as 13.56mHz), the IC card is fixed at the appropriate position of the vehicle unit, or the distance from the vehicle unit does not exceed a certain value. In this case, the card can be read. The advantage of this method is that the driver does not need to insert or swipe the card when performing the deduction, thereby reducing the driver's operation. Easy to operate. High reliability.

Preferably, in this embodiment, as shown in FIGS. 2 to 5, the housing 116 includes a front side and a reverse side, and the card insertion mechanism includes a card pocket mounted on the front or back side of the housing 116 and matched with the position of the in-vehicle unit 101. The opening 108 for the IC card is inserted into the bag, and the opening 108 can be directed to the right side, the left side or the upper and lower sides of the car visor as shown in FIG. 2, and the specific opening position of the opening 108 does not constitute a limitation of the present invention. When the cab is located on the left side of the vehicle, the opening 108 of the sun visor may face the right side, so that the right hand inserts the IC card 106 inwardly while the arm does not touch the car wall or the glass, and conversely, when the cab is located on the right side of the vehicle, The opening 108 can be designed to the left. For the design of the card pocket, the in-vehicle unit and the inserted IC card 106 can be in a non-contact type of reading and writing mode, or a contact type reading and writing method, preferably a non-contact type card reading, and an inductive coil is arranged in the IC card 106 to read The write unit implements wireless read and write functions by communicating with it.

The conventional vehicle-mounted unit adopts a hard shell structure, as shown in FIG. 9, the direction indicated by the arrow in the figure is the card insertion direction, and only one detecting contact 117 is disposed on the vehicle-mounted unit, and the detecting contact 117 is used to detect whether the IC card 106 has been The vehicle unit is inserted, and an IC coil 106 is internally provided with an induction coil. The detection is performed by detecting the contact and the induction coil. If the IC card 106 is inserted, the vehicle unit operates. In the prior art, only one detection contact 117 is located in the middle position of the vehicle-mounted unit 101. After the IC card 106 is inserted, the detection contact 117 detects the IC card 106, so that although the width of the vehicle-mounted unit can be reduced, the sun visor It is soft in itself, and when the IC card 106 is detected, it is easy to cause an erroneous operation due to human factors. Therefore, it is preferable to adopt two-side detection, and two detection contacts 117 are provided. The two detection contacts 117 may have a certain width. After the IC card 106 is inserted, the two detection contacts 117 respectively abut on both sides of the card, and the sunshade is respectively The plate housing 116 itself is relatively wide, allowing the presence of two sensing contacts 117. Therefore, in an improvement of the card insertion mechanism in the sun visor of the embodiment, please refer to FIG. 10, the direction indicated by the arrow is the card insertion direction, and the card insertion mechanism further includes a card detecting mechanism connected to the control unit, the card The detecting mechanism includes two detecting contacts 117 for detecting the IC card in the width direction. The two detecting contacts 117 are respectively disposed on both sides of the card track of the card insertion mechanism, and the IC card can be reliably detected when inserted, and is not operated by mistake. interference.

In another specific embodiment, the front surface of the housing 116 is further mounted with a cosmetic mirror 115. The onboard unit further includes a display screen 102. The display screen 102 is electrically connected to the control unit and mounted on the back of the cosmetic mirror 115, and the cosmetic mirror 115 is further A see-through area for presenting display content in the operational state of display screen 102 is included. Specifically, a screen bracket can be selected. The screen bracket is installed inside the casing 116 to fix the display screen 102. The display screen 102 is disposed on the back of the mirror 115 and is electrically connected to the control unit through the cable 105. The mirror surface on the mirror 115 matching the installation position of the display screen 102 is specially processed to make a semi-transparent effect to form a see-through area. When the display screen 102 is not displayed, the overall appearance of the mirror surface of the mirror 115 is a makeup mirror 115, and the display screen The display area of 102 is not visible. When the display screen 102 is displayed, the display content can be displayed through the mirror perspective area. Specifically, the display screen 102 can display the balance in the IC card 106 and the remaining power of the vehicle unit.

In one embodiment, referring to FIG. 3, the automobile sun visor further includes a cosmetic mirror cover 109 and a detecting mechanism; the cosmetic mirror cover 109 is movably connected to the housing 116 by push-pull or flipping, and the cosmetic mirror cover 109 is used to cover the makeup mirror 115; the detecting mechanism is disposed between the mirror cover 109 and the housing 116, and is electrically connected to the display screen 102 and the power supply unit, respectively, for detecting that the mirror cover 109 is in an open state and detecting When the power supply unit is lower than the preset level, a prompt is displayed on the display screen 102. As a preferred embodiment, in the case that the mirror cover 109 is connected in an inverted manner, the detecting mechanism includes a detecting switch, the detecting switch is mounted on the housing 116, and is electrically connected to the display screen 102 and the power supply unit respectively; the mirror cover 109 passes The connecting shaft is movably connected to the housing 116; the connecting shaft is further provided with a first boss matched with the position of the detecting switch, the cosmetic mirror cover 109 is opened, the first boss contacts the detecting switch, the detecting switch is closed, and the detecting switch is connected. Line, if the power supply unit is lower than the preset level, a signal indicating that the power is low is transmitted to the display screen 102 for display.

In another embodiment, referring to FIG. 5-8, the automobile sun visor further includes a solar module 110 and a trigger mechanism; the solar module 110 is disposed on the reverse side of the housing 116, and is disposed on the housing 116 respectively. On both sides of the back, the solar module 110 is electrically connected to the power supply unit, and the trigger mechanism is disposed between the housing 116 and the top of the vehicle and electrically connected to the power supply unit for detecting that the housing 116 is in the inverted state and detecting the power supply unit. When the battery is below the preset level, charge the power supply unit. Preferably, the reversible characteristic of the automobile sun visor installed inside the automobile body can be fully utilized to control the opening and closing of the charging function. The specific embodiment is as shown in FIG. 5: the trigger mechanism includes a trigger switch 119, due to the shell of the automobile sun visor A rotating shaft 107 is further connected to the body 116, and the trigger switch 119 is mounted on the housing 116, and is electrically connected to the power supply unit through the connecting line 121. The rotating shaft 107 is further provided with a second boss 118 that is matched with the position of the trigger switch 119. The rotating shaft 107, the second boss 118 is in contact with the contact 120 of the trigger switch 119, the trigger switch 119 is closed, and the solar module 110 is connected to the power supply unit through the trigger switch connecting line 121. If the power is insufficient, the solar module 110 charges the power supply unit. To prevent the car unit from working properly due to insufficient power supply unit. The vehicle unit may further include a low battery prompting module electrically connected with the control unit. When the power supply unit is lower than a certain preset power value, the low battery prompting module issues an early warning to remind the user or automatically rotate the car sun visor to open it. Then, the solar module 110 is turned on. In another embodiment, a voice broadcast module is further included, and the voice broadcast module is electrically connected to the power supply unit and the control unit respectively for voice prompting.

In another specific embodiment, the wake-up unit includes: a signal amplifying sub-unit and a frequency-selecting sub-unit; the signal amplifying sub-unit is electrically connected to the frequency-selecting sub-unit, and the signal amplifying sub-unit is further electrically connected to the radio frequency unit, the frequency selecting sub-unit and The control unit is electrically connected, the signal amplification subunit is used to amplify the wakeup signal, and the frequency selection subunit is used to wake up the onboard unit according to the frequency of the wakeup signal. In a specific implementation manner, when the antenna of the awake unit receives the microwave signal, the signal in the 5.79 GHz to 5.84 GHz band can pass smoothly through the one-stage or multi-stage high-pass/band-pass filter, and the other frequencies are suppressed from being attenuated. The signal passes, effectively reducing the signals such as 900MHz, 800MHz, 2.4GH and the like and entering the detection circuit. The detection circuit detects the high frequency signal of 5.79GHZ~5.84GHZ, removes the high frequency signal, and demodulates the baseband signal. And input the signal into the signal amplification subunit. In order to improve the sensitivity, the signal is weakly amplified. Finally, the weakly amplified baseband signal is input to the frequency selective sub-unit, and the frequency of the baseband signal is detected, so that the level change is only generated when the baseband signal of only 11KHZ to 25KHZ is input. The interrupt signal, and triggers the control unit and each module of the vehicle unit to enter the awake state. Since the signal sequentially passes through the signal amplifying subunit and the frequency selective subunit, when the baseband signal of 11KHZ to 25KHZ is generated, the wakeup unit generates an interrupt signal and triggers the onboard unit to enter the awake state. Through the amplification subunit and the frequency selection subunit, the signals in the 5.79GHz to 5.84GHz frequency band pass smoothly, and the microwave signals in other ranges will be greatly attenuated. Only the baseband signals of 11KHz~25KHz are sent to the low power consumption and high sensitivity selection. When the frequency subunit is used, an interrupt signal is sent to the control unit to wake up the control unit and each unit module, thereby realizing a high-sensitivity wake-up with low power consumption and strong anti-interference ability. The signal amplifying subunit is preferably a signal low multiplier amplifier, the frequency selective subunit may preferably comprise a zero crossing detection circuit, and the zero crossing detection circuit may be an AS3933 chip. The AS3933 chip is used as the frequency selection sub-unit of the wake-up unit, and has the functions of adjusting sensitivity and frequency selection. The working state of the AS3933 chip is divided into a listening mode and an awake mode. In the monitor mode, the operating current is 1.7uA and the maximum is 2.7uA. When the frequency of the input signal meets its set frequency range, it will exit the listening mode and enter the awake mode, and the signal RSSI intensity value will be detected. In the wake mode, a stable signal RSSI is obtained (Received Signal Strength Indicator, the strength of the received signal indicates the intensity value, and generates an interrupt signal, which is sent to the control unit to cause the control unit and other units to enter the awake state. Since the frequency selection subunit includes the AS3933 chip, in the standby mode, the frequency selection subunit is in the monitor operation mode, the control unit enters the full sleep mode, and the power supply of the other modules is also completely turned off, and is in a power down state, further reducing the consumption. Electricity.

In a preferred embodiment in which the sensitivity of the OBU is adjustable, the control unit can also receive the sensitivity gear position information obtained by the handheld device according to the attenuation value of the signal received by the vehicle windshield on the vehicle unit through the radio frequency link, and then according to the sensitivity gear position. The information and the pre-stored sensitivity gear position information table adjust the on-board unit to the appropriate sensitivity. During the OBU use, the wake-up unit is used to wake up the on-board unit when the sensitivity is reached.

Specifically, when the OBU needs to adjust the sensitivity, the handheld device can obtain the corresponding sensitivity gear position information according to the tested attenuation value, and transmit the corresponding sensitivity gear position information to the vehicle-mounted unit through the wireless/wired communication method, and the vehicle-mounted unit according to the received sensitivity. The gear position information and the stored sensitivity gear position information table (this table sets the correspondence between the sensitivity gear position and the appropriate sensitivity through the empirical value), and the appropriate wake-up sensitivity can be obtained.

After the OBU is installed, when there is no information interaction, the wake-up unit is in the monitor working mode, and its sensitivity has been set to a certain gear value according to the attenuation of the microwave signal by the windshield of the car, and the control unit is in the full sleep mode. At this time, both the wake-up unit and the control unit have power supply, but the current is small, and the other modules in the vehicle-mounted unit are in a power-down state. When the vehicle unit enters the communication area of the roadside unit, the wakeup unit receives the wakeup signal according to the set gear position value, generates an interrupt signal to the control unit, wakes up the control unit, and the control unit turns on the power supply switch tube of the other modules to make it Electricity, enter the working state, and conduct transactions and communication with the roadside unit. For example, there are 1 to 4 gear positions, which correspond to -80dB, -60dB, -40dB, -20dB wake-up sensitivity. When the value of the pre-stored sensitivity gear information is 2, it means that the sensitivity is -60dB. Receive the received signal. The number of specific gear positions can be set freely according to requirements. For example, the gear position information value can also be set to 1 to 6.

The pre-stored sensitivity gear position information value can be set by using the handheld machine or other detecting equipment. After the sensitivity gear position information value is set, if the gear position is not accurate, the gear position can be adjusted by using a gear setting card. Each time a card is inserted, the gear is lowered by one gear or upshifted, that is, the gear position stored in the current control unit is 3, the card is 2 or 4 when inserted once, and becomes 1 or 5 when inserted twice. If you do not use the handheld, you can also use the card to set the gear position. The initial position of the vehicle unit is 6 or 1. If the card is inserted, the card will be upgraded by one step or down one file each time the card is inserted, so that only the card is used for gear setting. And post adjustment.

After the transaction between the vehicle unit and the roadside unit is completed, the preset sensitivity position information is retrieved by the control unit, and the sensitivity of the wakeup unit in the standby state is set again using the gear position information. Generally, in the following three cases, the control unit will import the pre-stored sensitivity gear information into the wake-up unit: 1. When the vehicle-mounted unit is installed; 2. When the user inserts and removes the card; 3. After the transaction ends.

In one embodiment, in order to prevent malicious removal of the on-board unit, the sun visor further includes a tampering mechanism and a tamper-proof antenna box, and the tamper-proof mechanism and the RF antenna are installed inside the tamper-proof antenna box, and the tamper-proof mechanism It is electrically connected to the control unit via a tamper line. The tamper mechanism may share an RF connection line 104 with the RF antenna 103, or may be connected to a RF connection line 104. In either case, the RF connection line 104 may pass through the wire slot inside the visor housing 116 from the housing. Take the 116 side up. Further, the onboard unit 101 is further provided with an ESAM (Embedded) Secure Access The second card slot 122 of the module, the embedded security control module, the slot of the second card slot 122 is opened on the surface of the housing 116 for replacing the ESAM card. For example, when the highway is not used for parking, the ESAM card for the communication of the highway toll collection system of a certain province or the ESAM card for the communication of a parking lot toll system can be installed. The use is very flexible.

In this embodiment, the onboard unit may further include a Bluetooth module and a USB interface 123; the Bluetooth module is electrically connected to the control unit and is received in the housing 116; the USB interface 123 is electrically connected to the control unit, and the interface of the USB interface 123 is exposed. Outside the housing 116, the interface end of the USB interface 123 is for connection to an external data line.

The car unit is equipped with a Bluetooth module, and after the Bluetooth module is connected with the owner's mobile phone Bluetooth, the current state information data of the car, such as the transaction amount of the vehicle unit, the transaction date, the toll booth information, or the issuance or maintenance upgrade information, can be passed. The mobile phone promptly feeds back to the owner, so that the owner can view the relevant information of the vehicle unit through the remote control of the mobile phone.

The USB interface 123 is used to upgrade the software system carried in the control unit. One of the specific processes of the upgrade is:

(1) accessing the mobile storage medium to the onboard unit at the interface end of the USB interface 123, and storing the latest version of the software system boot program, the software system kernel and the application program in the mobile storage medium;

(2) starting the boot program of the vehicle unit software system;

(3) The software system is started, and the latest version of the software system boot program and the software system kernel in the mobile storage medium are loaded;

(4) The software system is restarted and the application software is automatically updated.

The on-board unit automatically loads the latest version of the software system boot program, the software system kernel and the application program in the mobile storage medium by pressing a button, and the removable storage medium may be any one of a U disk, an SD card, a T card or a mobile hard disk. The mobile storage medium is connected to the interface end of the USB interface 123 to perform an upgrade of the control unit system.

Due to the complicated working environment of the vehicle unit, the abnormal situation, sudden power failure, etc., the software system may not start properly, or a new version of the software needs to be updated. If the traditional method is used, the system is re-fired. The recording method has disadvantages such as high cost, low efficiency, and long repair time. The technical solution of repairing or upgrading the software system in the control unit by the mobile storage medium reduces the operation complexity, saves cost and time.

In the present invention, the control unit is preferably an MCU, and the power supply unit is preferably a thin film battery, and further preferably may be a thin film battery having a charging function, the radio frequency unit is preferably a radio frequency circuit, and the charging verification unit is a PSAM card (Purchase) Secure Access Module, point-of-sale terminal security access module card), the signal amplification sub-unit may preferably be a circuit structure with signal amplification function, the frequency selection sub-unit is preferably a zero-crossing detection circuit, and the low-power sub-unit may preferably have low power consumption The circuit structure of the control function.

Embodiment 2:

The embodiment provides a vehicle sun visor of another structure, which is different from the first embodiment. In the vehicle sun visor of the embodiment, please refer to FIG. 11-16, the card insertion mechanism is embedded in the housing 116, and is mounted on the vehicle. The unit 101 is provided with a first card slot that is matched in position. The slot 111 of the first card slot is opened on the side of the housing 116. The card button 112 can also be disposed on the side wall of the corresponding slot 111. The notch 111 of the first card slot may be formed on the right side surface of the housing 116 or the left side wall of the housing as shown in FIG. 12, or may be opened on the lower side wall of the housing 116 as shown in FIG. The specific opening position of the notch 111 does not constitute a limitation of the present invention.

Embodiment 3:

The embodiment provides a vehicle sun visor of another structure. In contrast to the first or second embodiment, in the vehicle sun visor of the embodiment, please refer to FIG. 17-18, and the card insertion mechanism includes an IC card for clamping the IC card. The clip has elasticity, and includes a fixing portion 113 and a clamping portion 114 connected to the fixing portion 113. The fixing portion 113 is fixed to the front surface or the reverse surface of the housing 116. For example, the fixing portion 113 can be along the mirror surface of the cosmetic mirror 115. The frame is disposed on the outer surface of the housing 116, or may be a sheet of a certain area, and the clamping portion 114 extends to a position matching the on-board unit 101.

Embodiment 4:

The embodiment provides an automobile, including an automobile body, having the complete structure and function of the automobile in the prior art, and further comprising the automobile sun visor according to any one of the first to third embodiments, wherein the automobile sun visor is disposed on the automobile through the rotating shaft 107. Inside the main body, the radio frequency antenna 103 is mounted on the windshield of the automobile body. Further, the tampering mechanism and the radio frequency antenna 103 can be simultaneously disposed in the tamper-proof antenna case, and the tamper-proof antenna case is mounted on the windshield of the automobile.

Embodiment 5:

The embodiment provides an electronic tag comprising an on-board unit 101 disposed in a sun visor of the automobile and a radio frequency antenna 103 for fixing on the windshield. The radio frequency antenna 103 is connected to the vehicle-mounted unit 101. The on-board unit 101 includes: a control unit. The power supply unit, the radio frequency unit, the wake-up unit, the reading and writing unit, and the charging verification unit; the radio frequency antenna 103 is electrically connected to the radio frequency unit, and the control unit is electrically connected to the power supply unit, the radio frequency unit, the wake-up unit, the reading and writing unit, and the charging verification unit, respectively. In one embodiment, the electronic tag further includes a tampering mechanism and a tamper-proof antenna box, and the tampering mechanism and the RF antenna 103 are both mounted inside the tamper-proof antenna box, and the tamper-proof mechanism is electrically connected to the control unit through the tamper-proof line. The control unit is configured to determine the disassembly state of the onboard unit according to the detachment prevention signal transmitted by the tamper mechanism.

The above is a further detailed description of the present invention in connection with the specific embodiments, and the specific embodiments of the present invention are not limited to the description. A number of simple derivations or substitutions may be made by those skilled in the art without departing from the inventive concept.

Claims

A vehicle sun visor for intelligent transportation, comprising a casing (116), characterized by further comprising a radio frequency antenna (103) and an onboard unit (101), the radio frequency antenna (103) being placed in the casing ( 116) externally, for transmitting and receiving communication signals; the onboard unit (101) is housed inside the casing (116) for interacting with the IC card data, and communicating with other parties through the radio frequency antenna (103) The device performs data interaction;

The onboard unit (101) includes: a control unit, a power supply unit, a radio frequency unit, a wakeup unit, a read/write unit, and a charging verification unit;

The radio frequency antenna (103) is electrically connected to the radio frequency unit, and the control unit is electrically connected to the power supply unit, the radio frequency unit, the wake-up unit, the read-write unit, and the charging verification unit, respectively;

The card housing (116) is further provided with a card insertion mechanism for accommodating the IC card.
The vehicle sun visor according to claim 1, wherein the card insertion mechanism comprises a card pocket mounted on a front or back side of the casing (116) and matched with a position of the vehicle unit (101). The card pocket has an opening (108) for inserting an IC card into the bag.
The vehicle sun visor according to claim 1, wherein the card insertion mechanism comprises a first card slot embedded in the housing (116) and matched with a position of the vehicle unit (101). The notch (111) of the first card slot is opened at a side of the housing (116).
A car sun visor according to claim 1, wherein said card insertion mechanism includes a clip for holding an IC card, said clip including a fixing portion (113) and a fixing portion (113) a clamping portion (114) on the front side or the back side of the housing (116), the clamping portion (114) extending to match the on-board unit (101) position.
A car sun visor according to any one of claims 1 to 4, wherein said card insertion mechanism comprises a card detecting mechanism electrically connected to said control unit, said card detecting mechanism comprising means for detecting in the width direction Two detection contacts (117) of the IC card are disposed, and the two detection contacts (117) are disposed on two sides of the card insertion track of the card insertion mechanism.
The vehicle sun visor according to any one of claims 1 to 4, characterized in that the casing (116) is mounted on the front side with a cosmetic mirror (115), and the onboard unit further comprises a display screen (102). The display screen (102) is electrically connected to the control unit and mounted on the back of the cosmetic mirror (115), the cosmetic mirror (115) further comprising a display for displaying in the working state of the display screen (102) The perspective area of the content.
A vehicle sun visor according to claim 6, further comprising a cosmetic mirror cover (109) and a detecting mechanism; said cosmetic mirror cover (109) being movably coupled to said housing (116) for use Covering the cosmetic mirror (115); the detecting mechanism is electrically connected to the display screen (102) and the power supply unit, for detecting that the cosmetic mirror cover (109) is in an open state, and detecting When the power supply unit is lower than the preset level, the display screen (102) prompts.
The vehicle sun visor according to claim 6, further comprising a solar module (110) and a trigger mechanism; the solar module (110) is disposed on a reverse side of the casing (116), the solar module (110) Is electrically connected to the power supply unit; the triggering mechanism is electrically connected to the power supply unit, for detecting that the housing (116) is in an inverted state, and detecting that the power supply unit is lower than a preset level The power supply unit is charged.
The vehicle sun visor according to any one of claims 1 to 4, wherein the awake unit comprises: a signal amplifying subunit and a frequency selecting subunit; the signal amplifying subunit and the frequency selecting sub-unit The signal amplifying subunit is further electrically connected to the radio frequency unit, the frequency selective subunit is electrically connected to the control unit, and the signal amplifying subunit is configured to amplify the wakeup signal, the selecting The frequency subunit is configured to wake up the onboard unit according to the frequency of the wakeup signal.
The vehicle sun visor according to claim 9, wherein the control unit is further configured to receive sensitivity gear information obtained by the handheld device according to an attenuation value of the vehicle windshield receiving signal from the vehicle windshield, and The sensitivity gear position information and the pre-stored sensitivity gear position information table adjust the sensitivity of the onboard unit, and the wakeup unit is configured to wake up the onboard unit when the sensitivity is reached.
The vehicle sun visor according to any one of claims 1 to 4, further comprising a tampering mechanism and a tamper-proof antenna case, wherein the tampering mechanism and the radio frequency antenna (103) are installed inside the tamper-proof antenna case The tampering mechanism is electrically connected to the control unit through a tamper line, and the control unit is further configured to determine a detached state of the electronic tag according to the detachment prevention signal transmitted by the tampering mechanism.
The vehicle sun visor according to any one of claims 1 to 4, characterized in that the onboard unit (101) is further provided with a second card slot (122) for inserting an ESAM card, the second card slot ( The notch of 122) is opened on the surface of the casing (116).
A vehicle sun visor according to any one of claims 1 to 4, wherein said other communication device is a desktop reader, a roadside unit or a handset of a no parking toll system or a parking lot charging system.
An automobile, comprising an automobile body, characterized by further comprising the automobile sun visor according to any one of claims 1 to 13, wherein the automobile sun visor is disposed inside the automobile body, and the radio frequency antenna (103) is installed. On the windshield of the automobile body.
An electronic tag comprising: an onboard unit (101) disposed in a sun visor of a vehicle; and a radio frequency antenna (103) for fixing on the windshield, the radio frequency antenna (103) and the onboard unit (101) The vehicle unit (101) includes: a control unit, a power supply unit, a radio frequency unit, a wake-up unit, a read-write unit, and a charging verification unit; the radio frequency antenna (103) is electrically connected to the radio frequency unit, The control unit is electrically connected to the power supply unit, the radio frequency unit, the wake-up unit, the read-write unit, and the charge verification unit, respectively.
The electronic tag according to claim 15, further comprising a tampering mechanism and a tamper-proof antenna case, wherein the tampering mechanism and the radio frequency antenna (103) are mounted inside the tamper-proof antenna case, the tamper-proof The mechanism is electrically connected to the control unit through a tamper line, and the control unit is configured to determine a disassembly state of the onboard unit according to the detachment prevention signal transmitted by the tamper mechanism.